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Capacity analysis of the successive AF relaying aided cooperative DS-CDMA uplink

Capacity analysis of the successive AF relaying aided cooperative DS-CDMA uplink
Capacity analysis of the successive AF relaying aided cooperative DS-CDMA uplink
An amplify-and-forward (AF) based successive relaying aided network (SRAN) is designed for a multi-user spread-spectrum scenario conceived for noncoherent (NC) detection in order to convert the typical 50% half-duplex relaying-induced throughput loss to a potential user-load reduction of the CDMA system, where the NC detector allows us to avoid the extra power consumption imposed by channel estimation. With the same “green agenda” in mind, we limit the extra complexity imposed on the relay node (RN) by invoking the AF, rather than the more complex decode-and-forward protocol. We theoretically characterize the proposed AF based SRAN in the context of the DS-CDMA uplink by evaluating its noncoherent Discrete-input Continuous-output Memoryless Channel (DCMC) capacity. We demonstrate that the cooperative DS-CDMA uplink achieves a higher capacity gain with respect to its conventional direct transmission based counterpart, when the system has to support a high number of DS-CDMA users.
9781467304375
Li, Li
8e6fbabd-aac6-4bb0-a273-a77750dc5b92
Wang, Li
f54669eb-8e6b-43ea-a6df-47cda21d6950
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Li, Li
8e6fbabd-aac6-4bb0-a273-a77750dc5b92
Wang, Li
f54669eb-8e6b-43ea-a6df-47cda21d6950
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Li, Li, Wang, Li and Hanzo, Lajos (2012) Capacity analysis of the successive AF relaying aided cooperative DS-CDMA uplink. 2012 IEEE Wireless Communications and Networking Conference: Mobile and Wireless Networks (WCNC2012), Paris, France. 01 - 04 Apr 2012. 6 pp . (doi:10.1109/WCNC.2012.6214329).

Record type: Conference or Workshop Item (Paper)

Abstract

An amplify-and-forward (AF) based successive relaying aided network (SRAN) is designed for a multi-user spread-spectrum scenario conceived for noncoherent (NC) detection in order to convert the typical 50% half-duplex relaying-induced throughput loss to a potential user-load reduction of the CDMA system, where the NC detector allows us to avoid the extra power consumption imposed by channel estimation. With the same “green agenda” in mind, we limit the extra complexity imposed on the relay node (RN) by invoking the AF, rather than the more complex decode-and-forward protocol. We theoretically characterize the proposed AF based SRAN in the context of the DS-CDMA uplink by evaluating its noncoherent Discrete-input Continuous-output Memoryless Channel (DCMC) capacity. We demonstrate that the cooperative DS-CDMA uplink achieves a higher capacity gain with respect to its conventional direct transmission based counterpart, when the system has to support a high number of DS-CDMA users.

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Published date: 11 June 2012
Venue - Dates: 2012 IEEE Wireless Communications and Networking Conference: Mobile and Wireless Networks (WCNC2012), Paris, France, 2012-04-01 - 2012-04-04
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 336961
URI: http://eprints.soton.ac.uk/id/eprint/336961
ISBN: 9781467304375
PURE UUID: 772ad056-1625-40cd-b02e-66bce9ed71e2
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 12 Apr 2012 10:21
Last modified: 18 Mar 2024 02:35

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Contributors

Author: Li Li
Author: Li Wang
Author: Lajos Hanzo ORCID iD

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